Whether you already own one and are looking to upgrade, or you're still shopping around for a wearable fitness tracker, the newly-updated Nike+ FuelBand SE ($150) is a great option at an approachable price point. Nike has made some small adjustments to the similar-looking predecessor, improving it at nearly every turn. This version now comes in black with wild neon accents on the underside (choose crimson, pink, or volt), and features a more effective way to track actual movement. It's also more flexible, is more weather resistant, regularly reminds you to get up and move, and features Bluetooth 4.0 connectivity. Along with these improvements comes an updated iOS app with better access to usable data, your goals, and graphs of your activity across various timespans.